Final answer:
To drive over objects safely, you must grip the handlebars firmly, maintain a straight path, and slightly rise above the seat using footrests, ensuring stability and balance as per the physics of bicycle riding.
Step-by-step explanation:
The three steps to driving over objects safely are B: Grip the handlebars firmly, maintain a straight path, and use the footrests to rise slightly above the seat. When riding a bicycle, maintaining a proper angle and balance is crucial for stability, especially when making turns. The force exerted by the ground must be on a line that goes through the center of gravity, requiring the bicycle wheel's force to be resolved into two perpendicular components: friction parallel to the road, supplying centripetal force, and the vertical normal force, equaling the system's weight. These principles also apply to ensuring safe passage over objects.